rare_j, awesome instructions! Thanks a bunch for the great tutorial. I followed all the steps so far but have run into a bit of a snag.

Preparing the boot.adf and I've nuked both ROMs down. The a500 is 157kb and the a1200 is 337kb. However, when I try to copy them to Disk1 I run out of space.... I haven't added anything to boot.adf so I'm not sure what's happening there.